Common Stock, Options Activity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Common Stock Options Activity [Abstract]
Outstanding Shares, Beginning of Year	37,385	139,550	339,404
Weighted Average Price, Shares Outstanding, Beginning of Year	$ 14.73	$ 4.65	$ 3.11
Shares Exercised	(14,769)	(102,128)	(199,670)
Weighted Average Price, Shares Exercised	$ 10.44	$ 0.96	$ 2.02
Shares Cancelled or Expired	(256)	(37)	(184)
Weighted Average Price, Shares Cancelled or Expired	$ 17.00	$ 17.00	$ 17.00
Outstanding Shares, End of Year	22,360	37,385	139,550
Weighted Average Price, Shares Outstanding, End of Year	$ 17.53	$ 14.73	$ 4.65
Shares Exercisable, End of Year	22,360	37,385	139,550
Weighted Average Exercise Price	$ 17.53	$ 14.73	$ 4.65
Common Stock Intrinsic Value Details [Abstract]
Common Stock, Intrinsic Value	$ 1,993	$ 2,022